From: The importance of market signals in crop varietal development: lessons from Komboka rice variety
Category | 1Tanzania | 2Uganda | 3Burundi |
---|---|---|---|
Release year | 2013 | 2014 | 2018 |
Number of varieties tested (including Komboka) | 9 | 10 | 4 |
Study sites | Kyela (Mbeya district), Igunga (Tabora district) Ifakara (Morogoro district), Bagamoyo (Coast district), Dakawa (Morogoro district) | Namulonge Doho Olweny Kibimba Agoro | Gihanga |
Farmers’ matrix ranking for IR05N221 | a2nd (1st was TXD 306, an improved local variety) | b1st | c2nd (after Musaruro/IR85260-148, and in same ranking as mugwiza) |
Farmers’ on-farm perceptions on agronomic traits of IR05N221 | 1st (at Kyela and Bagamoyo) 2nd (at Ifakara and Dakawa–1st was Supa at Ifakara site and IR05N499 at Dakawa site) | 3rd (at Agoro) 1st, with other two varieties (at Olweny) | 2nd (same ranking as Mugwiza rice variety) |
Farmers’ perceptions on sensory evaluation (cooking and eating grain characteristics) | Ranked 1st (in Dakawa) and 2nd (in Ifakara and Igunga) in terms of cooking and eating quality, with acceptable grain qualities, specifically soft cooking and good eating taste | Not applicable/unavailable | d4th/least ranking across the four criteria, but was most appreciated for its taste |
Researchers’ liked traits | Good performance in moisture stress conditions | Not applicable/unavailable | Suitable for rainfed and irrigated systems |
Early maturity | |||
Shows disease free characteristics under natural environments | |||
Yield performance | Higher yields (15–30%) under rainfed lowland ecology than all the local checks tested At all sites, high yields. At Dakawa high yield performance (6.73 t/ha) when compared to local check, Supa (4.37 t/ha) but non-significant difference to improved local check, TXD 306 (7.20 t/ha) | Higher yields (15–30%) under rainfed lowland ecology than all the local checks tested Overall/ across all sites yield performance trials at 5.96 t/ha: In 2012: 2nd highest (after WITA-9) at 6.5 t/ha In 2013a: 3rd highest (after GSR0057 and K85) at 4.52 t/ha In 2013b: highest at 6.85 t/ha | Average yield in 2018 at Gihanga Research station at 7.1 t/ha: Non-significant difference with the check: Mugwiza (7.29 t/ha) and Komboka (7.10 t/ha) |
Maturity period | Matures 7–14 days earlier than the most popular variety SARO 5 hence saving water and also avoiding the later stage drought | Matures 28–30 days earlier than K85 hence saving water and also avoiding the later stage drought |